Removal and Installation: Installation

• Install the intake manifold bolts and nuts in the reverse order of removal, following the tightening sequences below.

Tightening Intake Manifold Bolts and Nuts 

• Tighten in numerical order as shown in the figure.
  CAUTION: After tightening No. 5, retighten the No. 1 bolt to specification.
  Fig 1: Intake Manifold Bolt & Nut Tightening Sequence

  Courtesy of NISSAN MOTOR CO., U.S.A.

Tightening Intake Manifold Support Bolts

• Tighten the intake manifold support bolts following the tightening sequence below.
• Temporarily tighten the intake manifold support (rear) bolts.
• Tighten the electric throttle control actuator bolts.
• Tighten the intake manifold support (rear) bolts.
• Temporarily tighten the intake manifold support (front) bolts (intake manifold side).
• Tighten the intake manifold support (front) bolts (engine side).
• Tighten the intake manifold support (front) bolts (intake manifold side).

Installation of Electric Throttle Control Actuator: 

• Tighten the mounting bolts of electric throttle control actuator equally and diagonally in several steps.
• After installation perform procedure in "INSPECTION AFTER INSTALLATION".

CONNECTING QUICK CONNECTOR ON THE FUEL HOSE (ENGINE SIDE)

1. Make sure no foreign substances are deposited in and around the fuel tube and quick connector, and there is no damage to them.
2. Thinly apply new engine oil around the fuel tube tip end.
3. Align center to insert quick connector straight into fuel tube.
   • Insert fuel tube into quick connector until the top spool on fuel tubes is inserted completely and the second level spool is positioned slightly below the quick connector bottom end.
     CAUTION:

     • Hold at position "A" as shown in the figure, when inserting the fuel tube into the quick connector.
     • Carefully align to center to avoid inclined insertion to prevent damage to the O-ring inside the quick connector.
     • Insert the fuel tube until you hear a "click" sound and actually feel the engagement.
     • To avoid misidentification of engagement with a similar sound, be sure to perform the next step.
       Fig 2: Inserting Fuel Tube Into Quick Connector

       Courtesy of NISSAN MOTOR CO., U.S.A.
4. Before clamping the fuel hose with the hose clamp, pull the quick connector hard by hand, holding at the "A" position, as shown in the figure. Make sure it is completely engaged (connected) so that it does not come off of the fuel tube.
   NOTE: Recommended pulling force is 50 N (5.1 kg-f, 11.2 lb-f).
5. Install quick connector cap on quick connector joint.
   • Direct arrow mark on quick connector cap to upper side (fuel hose side).
6. Install fuel hose to hose clamp.
   Fig 3: Installing Fuel Hose To Hose Clamp

   Courtesy of NISSAN MOTOR CO., U.S.A.

CONNECTING QUICK CONNECTOR ON THE FUEL HOSE (VEHICLE PIPING SIDE)

1. Make sure no foreign substances are deposited in and around the fuel tube and quick connector, and there is no damage to them.
2. Align center to insert quick connector straight into fuel tube.
   • Insert fuel tube until a click is heard.
   • Install quick connector cap on quick connector joint. Direct arrow mark on quick connector cap upper side.
   • Install fuel hose to hose clamp.
     Fig 4: Installing Fuel Hose To Hose Clamp

     Courtesy of NISSAN MOTOR CO., U.S.A.